Screen-bottom bread-baking tray



G. MUELLER. SCREEN BOTTOM BREAD BAKING TRAY.

APPLICATION FILED MAY 28. I921.

Patented Mar. 7, 1922 o- NN a AU IH UNITED STATES PATENT OFFICE.

SCREEN-BOTTOM BREAD-BAKING TRAY.

Application filed May 28, 1921.

T YIJZ w from it may concern Be it known that I, Gnoncn MUELLER, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented new and useful Improvements in a Screen-Bottom Bread- Baking Tray, of which the following is a specification.

The invention relates to a screen-bottom bread-baking tray.

The object of the present invention is to provide a simple, practical and efficient screen-bottom baking tray designed for use in'bakers ovens for baking rolls, biscuits and the like and equipped with means for enabling the screen material constituting the bottom of the tray to be readily adjusted to counteract sagging and looseness from other causes, and to maintain the screen material taut and in proper condition with relation to the framework of the tray.

Another object of the invention is to provide a screenbottom bread-baking tray which, after the rolls or the like have been placed on it and properly proofed, is adapted to be readiiy placed into the oven with the screen resting upon the top of the hearth thereby enabling the rolls to be properly baked.

Another object of the invention is to provide a screen-bottom, bread-baking tray adapted to save time and labor and capable of enabling the entire batch of rolls to be handled in placing them in and removing them from the oven and adapted to produce a roll of a better texture as the'rolls after being proofed are not handled and the fermentation of the rolls is not disturbed and a much larger roll thus produced.

With these and other objects in view the invention consists in the novel construction, combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the form, pro portion and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings in which like characters of reference designate corresponding parts in the several figures:

Figure 1. is a plan view of a screen-bottom Specification of Letters Patent.

Patented Mar. 7, 1922.

Serial No. 473,247.

bread-baking tray constructed in accordance with this invention.

Figure 2 is a longitudinal sectional view of the same on an enlarged scale, parts being broken away.

Figure 3 is an enlarged transverse sectional view.

Figure l is an enlarged detail plan View of one corner of the frame of the tray.

Figure 5 is an enlarged plan View of a portion of the frame illustrating the construction of the intermediate transverse con necting bars.

Figure 6 is an enlarged plan view of the central portion of the tray illustrating the means for tightening the screen material.

In the accompanying drawings in which is illustrated the preferred embodiment of the invention the screen-bottom bread-baking tray comprises in its construction an oblong frame composed of angle side bars 1 and transverse connecting end and intermediate bars 2, 3 and 4, the intermediate bars 4 serving as spreading or spacing bars and the front and rear end bars 2 and 3 being riveted or otherwise secured to the angle side bars 1.. The angle side bars 1 have horizontal inwardly extending webs or flanges and outer vertical webs or flanges, the end bars being arranged upon the terminal portions of the inwardly extending webs or flanges of the angleside bars as shown. The front transverse connecting bar 2 is equipped at its center with an upwardly projecting ring or eye 5 preferably formed integral with an attaching plate 6 which is riveted or otherwise secured to the upper face of the upper transverse bar 2. The central eye 5 is adapted to be engaged by hook or other implement for facilitating the rapid handling of the tray in placing the same in and removing the tray from an oven.

The spacing or spreading bars 4 which are preferably constructed of half-round material having reduced flattened terminals 7 provided with longitudinal slots or bifurcations 8 adapted to receive clamping bolts 9 for securing the intermediate transverse bars to the angle side bars.

The screen material 10 which is preferably arranged in separate sheets, extends across the frame and has its marginal side portions fitted against and arranged upon the webs or flanges of the longitudinal side bars and the said side marginal portions of the material are clamped against the verti cal flanges of the angle side bars by the, means of inner longitudinal clamping bars or members 12 which are secured by bolts 13 or other suitable fastening devices to the upwardly extending webs or flanges of the side bars, the marginal sideportions of the screen material being provided. with slots 14 for the passage of the clamping bolts for permitting-"an adjustment of the screen ma 7 terial by central transverse adjusting bars the clamping bars.

or members i 15. After the adjustment of thescreenwmaterial has been efliected and the screen material drawn to the desired. tension the marginal portions are clamped by tightening the side bolts. The side clamping bars or members are provided'with recesses 16 to clear the intermediate transverse bars 4: and with central elongated recesses 17 for the terminal portions :18 ot the central adjusting barsor members.

The central adjusting bars or members 15 are preferably composed of angle bars having vertical and horizontal webs or flanges, the vertical webs or flanges being cut away at theirtermina'ls at 19 to form the said projecting terminals 18. The adjusting bars 15 are arranged upon the screen material which is clamped; agalnst the bars 15 by lnner clamping bars 20 secured at intervals to the bars 15 bybolts 21. Then the central terminalport-ions of the sides of the screen material are firmly secured to the adjusting bars 15 the latter are adaptedto be drawn togetherbyadjusting bolts 22 which PIBIOG- the vertical "web portions of the bars 15 and serve as runners in introducing the tray into an oven and in removing the traytherefrom, will notcatch upon the bottom of the hearth and interfere with the repeated and convenienthandling of the tray.

Thecentral recesses ofthe clamping'bars form guides or ways for slidably interlock ing the terminals 18 of the adjusting bars "withtheframeand the intermediaterecesses 16'enable the terminals 7 of the halt-round spreading bars to be also interlocked with the frame ofthe tray.

Whatis claimed is: a l. A tray for bakers ovens comprising side bars having angularly disposed in clined portions forming runners, cross bars connecting-the side bars and a foraminous bottom secured to the side bars.

This will enable the- 2. A tray for bakers ovens comprising angle side bars having inwardly extending wings or flanges and upwardly extending wings or flanges, to aminous bottom extending across the space between the side bars and arranged upon the horizontal wings or flanges and having marginal portions fitted againstthe inner faces of the upwardly extendingflanges, inner clamping bars or members fitted against the marginal portions or the foraminous bottom andse curingrthe same to the sidebars, and cross bars connecting the side bars. 7

35 A tray for bakers ovens having inwardly extending wings or flanges and up wardly extendingwings or flanges; a toraminous bottom extending across the space between the side bars and arranged upon the horizontal wings or flanges and havinginarginal portions fitted. against the inner faces of the angle side bars inner clamping bars securin the marginal portions of the fo 2-; rannnous bottom to the angle side bars, said side bars having inclined upwardly extending terminal portions 'liorming'runners, and. cross bars connecting the angle sidebars.

4:. A tray for bakers ovens comprising angle side bars having inwardly extending wings or flanges, a foraminousbottomex tending across the space between the side bars and arranged upon the inwardly extending wings or flanges, clamping bars or members securing the marginal portions of the foram'inous bottom to the angle side bars, said side bars having inclined terminal portions, intermediate cross bars spacing the side bars andsecured tothe same and end connecting bars secured to the inclined portions'of the side bars, one of the end bars being provided with a central pro ecting eye orrlng.

5. A tray for bakers ovens comprising angle side bars having inwardly and'forwardly extending webs or flanges transverse connecting endbars, a fora-ruinous bottom arranged upon the angle side bars, transverse spacing or sliding bars extending across the space betweenthe side bars and secured tothe same and clamping bars mounted on the angle side. bars and'securing the marginal portions ofthe foraminous bottom to the said sidebars and providedat the spacing or sliding bars with recesses.

6. A tra for bakers ovens com risin side bars, a foraminous bottom composed of separate ad ustable sheets having their man ginal portions secured to the sidebars and transverse ad ustlng bars provided with means for clamping the said sheets and having their terminals slidably interlocking with theside bars and adjusting means connecting the said adjusting bars for1stretching the sheets;

7. A. tray comprising angle side bars; end

bars connecting the side bars, a foraminous bottom consisting of sheets of screen mate rial having their marginal portions arranged on the angle side bars, clamping bars mounted on the side bars and securing the said sheets to the side bars and provided with opposite recesses forming guides, trans- -to the frame, said clamping bars being provided with intermediate and central re cesses intermediate transverse sliding bars secured to the angle side bars and having their terminals fitted in the said intermediate recesses whereby they are interlocked with the frame, central adjusting bars connected with the said sheets and having their terminals slidably interlocking with the central recesses and adjusting screws connecting the adjusting bars for placing the sheets under tension.

9. A tray comprising a frame having angle side bars, a foraminous bottom consisting of sheets of screen material having their side marginal portions arranged on the angle side bars and provided with slots, clamping bars securing the said marginal portions of the sheets to the side bars and having fastening means passing through the said slots, said clamping bars being provided with intermediate and central recesses in their lower edges, intermediate sliding bars secured to the angle side bars and having terminal portions fitted in the intermediate recesses, angle adjusting bars having projecting terminals arranged in the central recesses of the clamping bars, means carried by the angle adjusting bars for engaging the said sheets and means for ad- ]ustably connecting the adjusting bars for placing the sheets under tension.

10. A tray comprising an oblong frame having angle side bars, a foraminous bottom, clamping bars securing the foraminous bottom to the side bars of the frame, spreader bars substantially half-round in crosssection and having flattened terminals provided with slots and fastening devices arranged in slots and securing the spreading bars to the angle side bars.

In Witness whereof I hereunto afiix my signature.

GEGRGE MUELLER. 

